47964907818 has 24 divisors (see below), whose sum is σ = 104416505856. Its totient is φ = 15912527400.

The previous prime is 47964907811. The next prime is 47964907829. The reversal of 47964907818 is 81870946974.

47964907818 is a `hidden beast` number, since 4 + 79 + 6 + 490 + 78 + 1 + 8 = 666.

It is a super-2 number, since 2×47964907818² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47964907811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6310698 + ... + 6318293.

It is an arithmetic number, because the mean of its divisors is an integer number (4350687744).

Almost surely, 2^47964907818 is an apocalyptic number.

47964907818 is an abundant number, since it is smaller than the sum of its proper divisors (56451598038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47964907818 is a wasteful number, since it uses less digits than its factorization.

47964907818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12629210 (or 12629207 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 47964907818 in words is "forty-seven billion, nine hundred sixty-four million, nine hundred seven thousand, eight hundred eighteen".